Pasteurizing apparatus



Patented May 24, `17932 l UNITED L STATES PATeNT-f office v CHERRY-:aman conronArIoN, or

1)E1.Aw'A:anl Application 'meajauly 15,- My invention relates to apparatus `for pasteurizing or otherwise treatinglliquidsin example,

p izing chamber when the connection with certain temperature requirements.v

One of theobjects ,ofthe invention.` is ,to provide a simple, practical and effective form` of apparatus of the class speciiied. f Another object ofthe invention is to permit liquid to be vcontinuouslyv supplied to the treatment or pasteurizing chamber while the temperature re l while t e temperature is .up to a cer-y tainpoint. Another object of the invention is' to s to'p the How of liquid to the treatment or pasteurtemperature requirements are not met, 'as for example, Vwhen it falls below such predetermined point. Another object ofthe invention is to permit the liquid to flow again to the. treatment or pasteurizing chamber,- upon the restoration of temperature vrequirements as for instance, when the temperature isrestored to said predetermined point. r e

Another object is to secure thev foregoing and other desirable results in asimple and expeditious manner. MIn this application I applied to pasteurizing it will be understood that it may be applied show the invention.

to other forms of apparatus as well.

trolled by 'valve 8.

In the accompanying drawings:

- V Fig l'is a cross'sectional view of apasteurizing. apparatus embodying my invention;

Fig. 2 is a side elevation ofthe same. Referring to the drawings, I show4 a pasteurizing, tank or holder 1, to which is eX- tended a feed pipe 2 carr g the liquid to be pasteurized or treated. feed pipe 2 extends to .a structure 3 which receives liquid from a pump, or by gravity or otherwise through asupply pipe 4.

e structure 3 referably contains a valve chamber 5 in which is arranged a valve structure 6 preferably provided with two valvesl 7 and 8. Structure 3 also-has a port 9 controlled by valve 7 and another'port 10 con- A valve stem 11 pref-- erably extends upwardly from valve 7 and wings 12 are preferably arranged below valve uirements are met,`as for as a result liquid ,comin apparatus, although ,HAROLD s: HELDER, or JimrcxAeo, ILLINOIS, AssIGNomnY ASSIGNMENTS, To ILLINOIS, iA nroRArIoN k011'.

CHCAGO,

rAsrEUnIzINe APPARATUS 1927. Serial Nb. 206.025

6 so las to guide the Y13 is preferably arranged below .wings 12 and in', contact with the same and a tongue or projection 14 is preferably secured .to the valve f I guide andsteady the upperv structure so asl to .end of springr13. Speing 13 is seated 1n a valve structure. Aspringv vseator concaveme'mber 15. rA pipe 16 'is arranged at the lower portion -of structure 3 and opens into a chamber 17 which communicates through'port 10 to a chamber 5.

n lWhen valve structure 6 is infits lowermost position, asshown in Fig. 1,1iquid'maycome through suppply pipe 4Q thence throu ever, valve structure 6 is elevated, valve 7 will close po 9 and valve 8 will open port 10 and through pipeiwill not pass into and throng pipe 2, but will pass through port and into plpe 16 and by the latter will be returned tot e pump, or other- 4wise circulated, so that it/ is diverted from the 'pasteurizing or treatment chamber.

automatic control may be effected so as to into chamber 5 and i l gh port 9 into pipe 2 and be discharged in the tank or holder. 1. When, howy Arrangement is preferably made by which ause this by-pass or return circulation'when v the liquidl becomes too cool for pasteurizav restore the fiow ofthe liquid to tionand to the pasteurizing chamber when the liquid is again 4heated to proper temperatur vV`y-In the arrangement shown for carrying this o ut, which it is understood is only one of a number ofarrangements`which could be used f or the purpose, I 'show a thermal device 19, preferably'mounted on an armor support 20 attached totrolthe valve mechanism in the manner described. This element 19 may be a Dickson `motor operated device for controlling valves,` being a devlcelrnown on the market as sensl- 'a5 structure 3 andadapted to con-"ftive `to changes in thermostatic control so that it will operate when temperature varies. This a downwardly element 19A is provided with extendin spindle or plunger 21 which is arranged aove valve spmdle ,'11 and adapted to cooperate withthe same. y Thus, when the temperature of the liquid is suiiiciently high the plunger21 to descend and push valve stem 11 downwardlyV and thereby open vport 9 and member 19 will cause andv cause it to.

permit liquid to pass into chamber. When,-however, the temperature of the liqui'dbecomes too 21 to rise, thereby permitting spring 13 to push valve structure 6 upwardly and close port`9 and open port l1()` and prevent the passage of liquid into the pasteurizing chamber be circulated by the pump. This circulation will continue and the liquid Y, will be heated until the latter again reaches v the pasteurizing chamber.

, heat is imparted so as to effect this thermal the proper temperature, whereupon element 19 will cause plunger 21 to lower valve structure 6 and operate the bypass valve arrangement so as to permit liquid to flow again through port 9 and into The element 19 is connected or associated with the liquid heater so as to be controlled the same, as, for' example, by means of a Leeds & Northrup thermostatic control mechanism 30 so as to accomplish the aforesaid automatic regulation. In this way the desirable result will be secured, as previously pointed out. The bulb or member to which control, is located between the pump or other source of supply, or in other words, in front of the valve mechanism involving member 3 and associated parts, so that changes in temperature, particularly the change from sub-normal to normal, vmay effect the operation of the apparatusand cause it to operate properly.

l The port 10 is preferably formed by a removable valve seat and this removability is advantageously secured by making s uch valve vseat the upper portion of a removable member 17 and having the latter formt/the chamber 17. The renovability of member 17 a -may be obtained by tting it in the lower portion of. structure 3 and holding it in place by a valve 8 may and replacement of parts is also permittedby this arrangement.

lItw-ill be understood that changes and modicationsmay'be made without departin from the spirit of the invention.

atIclaimis: l l y 1.` apparatus of the class specified, the

combination of a valve holding 1 structure provided with inlet and outlet passages, ay valve varranged within 'said valve holding the pasteurizing low for pasteurization element 19 will cause spindle or plunger Structure, and a descend and again in place c Lamm structure and means formmg a removable valvev seat for said valve, said means comprising aremovable member providing a chamber having an aperture which forms the valve seat, a ring or annulus having threaded connection said ring or annulus and in turn holding said valve-chamber structure removably in position. l

2. An apparatus of the class specified in combination with a pasteurizing chamber, a pipe for feeding iuid thereinto, of a valve chamber in said pipe, said valve chamber containing valves; a by-pass communicating vwith the said valve chamber; thermically operated means outside of the said valve chamber for automatically controlling the said valves for directing the fluid How either to the pasteurizing chamber or to the bypass, depending upon the temperature of the uidflowing toward the pasteurizing chamer. i I 3. An apparatus of the class speciiied in combination with a pasteurizing chamber, a pipe for feeding Huid thereinto, of a valve with the valve holdingtting also held in place by Y chamber in said pipe, said valve chamber containing valves; a by-pass communicating with the said valve chamber, a valve for the feed pipe and a valve Jfor the by-pass, the said valve chamber being free of all obstruction excepting one of the valves, the other of said valtes forming a part of the valve-chamber wal v 4. In a milk pasteurizing apparatus, the combination of a control structure, said control structure including a valve body' conl taining an `inlet and two outlets, the inlet being connected to a milk treating device, one of the outletsleading to a storage for the pasteurized milk ing back to the milk treating device; a valveoperating stem with valve disks thereon forv controlling the outlets; a stuiing box on-the valve body through which the said valve stem protrudes for connection to operating means, said means consisting of a power device located outside of the valve body; temperature-responsive means within the inlet for controlling the said power device whereby v one of the outlets will be closed and the other l opened depending upon the temperature of the milk flowing through the `inlet pipe.

5. Ina pasteurizing control-system, a pasteurizing chamber, an inlet. into said chamber for admitting iluidthereto, a supply connection with said inlet, a return connection from said inlet by passing said chamber, a

said valve, a temperature responsive ele- `and the other outlet leadlvalve in said inlet for connecting the supply i to the inlet or by pass, a motor for operating ment in said supply connection, a-controllingl d element mounted remotefrom said supply, connectionsy from the device to said element, i

www;

and means operated by said device for energizing said motor.

6. In a pasteurizing control system a pasteurizing chamber an inlet into said chamber for admitting uid thereto, a supply connection to said inlet, a return connection from said inlet by passing said chamber, a .valve in said inlet for connectin said supply( to the inlet or by pass, a motor or operating said valve mounted outside of said inlet and connections, a temperature responsive element mounted in said supply connection, and means operated by said controlling element for energizing said motor. 7. Ina milk pasteurizing apparatus the combination of a pasteurizing chamber, an inlet to said chamber, a supply connection to said inlet, a valve structure mounted between the inlet and supply connection, controlling 2o means located `outside of said inlet and con: nection for operating said valve, connections between said controlling means and said valve, and means for removing'l said valve structure While maintaining said connections. 8. In a milk pasteurizing apparatus the combinationl of a pasteurizing4 chamber, an inlet to said chamber, a supply connection to said inlet, a valve structure mounted between the inlet and supply connection, controlling means located outside of said inlet and connection for operating said valve, connections between said controlling means and said valve, means for removing said valve structure while maintaining said.v connections, a 85 temperature responsive element mounted in said supply connection and means controlled by said element for operating said controlling device to` actuate said valve.

ln witness whereof, I hereunto subscribe 40 my name this 2nd day of July, A. l). 1927.

HAROLD S. -FIELDER. 

